Three Rivers' Comanche Springs Astronomy Campus is located in the middle of North Texas ranch lands. US Highways 287, 70, and 83 provide close access from the surrounding metro areas. The campus is located south of Highway 70 between Paducah and Crowell at 4187 FM 654, Crowell, TX.

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From Crowell:

Follow Hwy 70 West through the blinking stop light in Crowell and continue for 10 miles to the Roadside Park at FM 654.  You will see the sign for Comanche Springs Astronomy Campus at this Roadside Park, turn left onto FM 654.

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Follow FM 654 for 4.4 miles, you will cross 2 cattle guards on the road.  Just after the second cattle guard, the driveway to CSAC is on the left.  At the top of the drive, you notice an RV campsite on the right and you will pass under an overhead gate that says “3RF”.  This is the main campus entrance.